Chimney and chimney-flue.



No, 898,628. PATBNTED JULY414, 1908. E. G. LEITH.

CHIMNEY AND CHIMNEY PLUB. APPLIUATION FILED JUNE 8,1907.

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UNITED STATES PATENT OFFICE.

ERNEST G. LEITH, OF TITUSVILLE, PENNSYLVANIA.

CHIMNEY AND cHIMNEY-FLUE.

To all whom it may concern:

Be it known that I, ERNEST G. LEITH, a citizen of the United States, residing at No. 57 Breed street, in the city of Titusville, in the county of Crawford, in the State of Pennsylvania, have invented new and useful im provements in chimneys and chimney-fines for use in dwelling-houses or other buildings, whereby the same can be built practically fire, water, and weather proof.

This invention relates to chimneys for dwelling houses, factories and other buildings and has for its object to provide a chimney which is strong and durable in construction and which will effectually withstand the action of the elements for an indefinite period.

A further object is to provide a chimney the base of which is formed with a reduced extension which projects through the roof of the building for connection with the chimney flue, there being a laterally extending shoulder formed on the base of the chimney at the reduced portion thereof and having its lower longitudinal edge inclined to conform to and adapted to bear against the upper surface of the roof.

-A further object is to so position the base of the chimney on the roof of the building that said base will extend between and be supported by the adjacent rafters with the ends of the sheathing boards and roofing material projecting beneath the shoulder thereby to form a water, fire and weather proof joint where the chimney projects through the roof of the building.

A still further object of the invention is to generally improve this class of devices so as to increase their utility, durability and efficiency.

Further objects and advantages will appear in the following description, it being understood that various changes in form, proportions and minor details of construction may be resorted to within the scope of the appended claims.

In the accompanying drawings forming a part of this specification: Figure 1 is a side elevation of a chimney base constructed in accordance with my invention showing the same in connection with an ordinary brick chimney. Fig. 2 is a similar view showing the base used in connection with a chimney formed of cement blocks. Fig. 3 is a side ele- "vation of the chimney base detached. Fig. 4

Specification of Letters Patent.

Application filed June 8, 1907.

Patented July 14, 1908.

Serial No. 378,007.

is an end view of the same. Fig. 5 is a top plan view of two of the blocks forming the chimney shown in Fig. 2, two of the .blocks being also shown detached from said chimney.

Similar numerals of reference indicate corresponding parts in all of the figures of the drawings.

The improved chimney base forming the base being provided with a reduced exten.

sion E defining a laterally extending'stop shoulder which entirely surrounds the side walls of the chimney base, as indicated at B and C in the several figures of the drawing.

The reduced extension E projects downwardly through an opening in the roof of the building between the rafters D for connection with the chimney flue, as shown, the side Walls of the extension E being disposed flush with the exterior walls of the chimney flue so as to present a smooth unobstructed surface.

The lower longitudinal edges of the stop shoulder on twosides of the base A are inclined upwardly towards the center of said base to conform to the pitch or inclination of the roof and are designed to rest on the adj acent rafters D with the ends of the roofing boards and ridge boards (when said ridge boards are used), interposed between the rafters and the inclined edges of the shoulder, as best shown in Figs. 1 and 2 of the drawing.

The remaining longitudinal edges of the shoulder are disposed parallel with the lower end of the extension E and rest against the sheathing or roofing boards thus forming a water and fire proof joint where the chimney projects through the roof of the building while at the same time serving to prevent accidental displacement of the roofing boards.

Attention is here called to the fact that by interposin the base A between the adjacent rafters D the chimney base is locked against accidental displacement while the rafters by indirect engagement with the stop shoulder serve to assist in sustaining the weight of the chimney base.

In Fig. 2 of the drawings the chimney proper is shown constructed of angularly disposed concrete blocksG arranged in superposed courses and arranged to break joint with the cap plates F bearing against the upper course and with the reduced extension E of the chimney base engaging the chimney flue, as shown.

It will of course be understood that the extension E may be made in different len ths according to the conditions under whicli it is used, while the lower edges of the stop shoulder may be inclined to correspond to the inclination of the roof of the building.

From the foregoing description it will be seen that there is provided an extremely simple, inexpensive andelficient device admirably adapted for the attainment of the ends in view.

Having thus described the invention what is claimed is: l

A chimney base including a hollow sub stantially rectangular body portion having its exterior walls partially cut away to produce a circumferential sto shoulder defining a reduced portion, the wa ls of which are dis osed parallel with each other, the exterior walls of the body portion between the shoulder and the upper end thereof being solid and free from surface projections to form a reinforcement, two of the opposite longitudinal edges of the shoulder being under-cut and arranged parallel with the bottom of the body portion and the remaining longitudinal edges of said shoulder inclined upwardly from the corners of the body portion and intersecting onsaid body portion.

ERNEST G. LEITH.

WVitnesses:

L. SOHLEHUBER, Jr., J. E. MURRAY. 

